Film splicer



B. ABOLTIN FILM SPLICER Sept. 23, 1952 2 SHEETS- SHEET 1 Filed Dec. 13, 1949 INVENTOR. @ffm/MvZ/ www@ B. ABOLTIN FILM SPLICER Sept. 23, 1952 2 SHEETS-SHEET 2 Filed Deo. 15, 1949 11; v I INI/JSTOR. f' Zawya/1@ o/ZW BY l f @fam mag:

Patented Sept. 23, 1952 -.EILM sPLIcEn f 'Bernard Abo1tin, ohie ag0, n1., assignor -w-Manse'ld Industries,Inc., Chicago, Ill., Aa ccrpcra-Y l tion c'f 'Illinois Application December 13, 19.49serie1ne..132,180

1 Y'My invention relatestomplovements Aini-ihn splicers fof splicing together the. .cut ends oftwo pecesciflm. f Y

@ne object olf my, invention isI ,to provide, in a nim s p'licer, an-,improved orjm `of scraping or albradinadcrice fior the, purpose f 1.1temovns the emnlsicnadiacentithc e'dgciofcne-sectionof nlm preparatory .ltoicarry'ing nut the splicing operation.

,Another object cimy ,invention `lis .the provision of animployed construction .by means vof which theisimultanecus,cutting ci the two nlm ends .is accomplished a simpleand Asure man- DGI'.

teachings .of my i r1.v-,e'ntion Amay .he .considered in .relation .to .thatftype of yfilm .splicer Whichinclirdes a.framememberproridng Xd base membercn the leftsidecf .the frame membenhinged base membercn the right. side .of

they are separateand distinct devices. or. they. are

attachedto jtheleithan'd clamping plate .or in some other manner 'so that'thefscraping or abra@- ing surface'inay "be lrnoughjt to 'hear' against Athe lm edge whereupon, lbyfginovement With the hand,*thescraping-foperationis-carriedout. Typical ci @such :constructions @are `those shown in Generally speakingningaccordance .with 'myinvcnticn, the lil-m vscraper.is mounted on ,a suppcrtmemberftheiatter heineng-idlyheidpreiere ably- Qn the leitfclamping plate-'and theiscraper proper 'is adapted-.to .inc .moyed longitudinally :of the support .lc-ut, of course,N .transverselycf -the to bereadilyfmovable,about its axis. .Inits particuiariy prei erred 'fcrrn, theiscraper 'is provided with two -oppositely arrangedscraping orabradingsurfaces o f dierent abra/dingecharacteristics,

and said surfaces are slightly ,QI-lliled lligitn-` Finger pieces cr `the flike are dinally thereof. formed -on'theescraper between abrading surfaces to facilitate Amanipulation of the scraper. "The construction serves to perform the scraping op-v eration inexcellentmanner andwith'afminimuni of effort, takin'gcarelofinequalities in emulsion thickness and the "likeand read-ily l adaptingitsel to meet whatever problems-iInail#al1-*iseY in relation zciolaims. (01.15'4-421) to the Y.removalnf emulsion preparatory tc the splicing, Operations.

My ,invention .also embodies Anovel .mean wherebythe simultaneouscutting ofthe tvvolm ends is. .ac ccrnplishe d in a sure manner. Here.- tcfcre, v'it has been common practice, film splicers of thetype ,to vwhich myiinventicn relates, to utilize,upstandnglugscn the 'base members so that when ,the hinged clamping .plates are with my invention, lthelcl'amping plates-of the` two iilrn holding assemblies being ,in .closed .or latched .pstion F "ie. 2.is a perspective view ,in which ,the ,two hinged clamping plates, andthe hingedbase plate are shown in raisedposition.

Fig. L3 is .a transversesection taken along Jthe line 3- j3 of L1', 'looking in the direction of thearrows. w l

LFi'g. 4 is f .an.explodedperspective view. show? ingthe scrapersupportmenrber and thescraper adapted lto .be mountedthereon. Y

Fig.-5 isa perspective view of the latch member for ,holding the 'lm -holding .assemblies in closed 'or latched :.pQsition;

Eig. y6 ,is .a plan view, `partly in section, .with

the clamping platesomitted, .for clarity purposes. Fig. T is Va lcng'itudinalrsection.takenalongthe line L -'lof .Fig. 6, looking ,inthe direction .of

the.. arrows. A

VFiniti .isailongitudinalsection itakenalong the thearrows.

Eig. 9 -,is a transverse f section ..taleen along vthe line -.S- of Fig.- 6, looking in the directioneoithe arrows. Y Fig. 10 is an enlarged section showing'ithe angularity Vojicne ofthegiframe earsrv against which angcuterearfof afclax'npingplate abuts .for thel purpose :described zhereafter; f

'The -splicerfcomprises a base Inem'ber'fllll havingf a slightly l:raised A#ii-iced `-lcase plate I I ar- 1ranged Iatthe Ale'ftfside-o'fgthe base gmember, and

ap'ivotedfbaseplate I2-arranged attire right side of the base member. Adjacent the base plate I I is a slotted or cut out portion I 3. The upper surfaces of said base plate members are provided with the usual projections I4, I6 which engage in the side perforations of the film to hold it in piace. The plate I2 is provided with a finger piece I"I for facilitating lowering and raising said plate as may be required.

Associated with each base plate is a pivoted clamping plate, the left clamping plate being denoted by numeral I8 and the right clamping plate by numeral I 9. The plates I8-`and I 9 are each provided with spaced ribs 26 to impart rigidity and enhanced tensile strength to said plates. The plate I8 has a finger piece 2I and the plate I9 has a finger piece 22. The manner in which the pivoting or hinging of the plates I2, I8 and I3 is effected is described in detail below.

Mounted on the upper surface of the clamping plate I 8 is the film scraper mechanism. This comprises a support member 23 having a right angular portion 24 provided with a longitudinal slot 26 within which a nlm scraper 21 is adapted to be moved freely. A rivet or the like 28 having enlarged heads extends through an aperture 29 in the scraper 2 and loosely through the slot 26 so that the scraper is movable freely along the slot 26 and, in addition, is adapted for movement about its axis. The scraper is generally U-shaped and is provided with finger pieces or extensions 3l for easy manual manipulation. The scraper 21 has opposed film abrading surfaces I32. and 33 each of which is provided with a slight curvature. It is desirable that these abrading surfaces be of different degrees of fineness. It will be seen that either abrading surface `may be used and the scraper may be turned with the hand to different angularities so that the film emulsion may be scraped off in a facile manner and without any danger of tearing the'side edges of the film. The end of the scraper support member remote from the right angle portion 24 is formed with spaced hinges 34 through which pass a transverse rod 36 which is supported rigidly in alined apertures provided in ears 31 extending upwardly from the clamping plate I8. A coil spring 38 is mounted around the transverse rod 36 between the hinges 34 and one free end of the spring 38 bears against the support member 23 and the other free end of said spring bears against the top of clamping plate I8. It will be seen, therefore, that the scraper is normally urged towards the left and away from scraping position. With the lm to be spliced clamped within the lm holding assembly formed by plates I I and I8, and the film holding assembly formed by the plates I2 and I9 in raised position and out of the way,

the finger pieces are grasped between the fingers` and moved to the right on the hinges 34 to scraping position. It will be observed that the scraper support member is rigid or xed and only the film scraper proper is moved transversely of the lm, and the scraper is freely and easily movable and not against the resistance of any spring..

This is in sharp contrast, for example, to various prior art constructions wherein the scraper and its entire support member are moved during a scraping operation and against the resistance of a spring.

As is shown more particularly in Figs. 2, 3. 6, 7 and 8, the base plate I2 and both clamping plates I8 and I 9 are hinged along their rear portions on a longitudinally extending shaft or rod 36 which is most advantageously mounted below the plane of the base plates. Spaced ears 40 and 4I extending downwardly from said frame and 4 advantageously integral therewith are provided with apertures which are alined with apertures extending through pairs of spaced ears 42, 43 and 44 extending, respectively, from plates I8, I9 and I2 and essentially at a right angle to said plates. The shaft 39 passes through all of said alined apertures. It will be noted that each outer ear 42, 43 is disposed inwardly of but in abutting relation to its respective frame ear 4I ,the inner ears 42, 43 are in juxtaposition to each other,

`and the ears 44 of the hinged base plate I2 are disposed between the ears 43 of the clamping plate I9 and in juxtaposition to said ears 43. Individual coil springs 46 and 4I extend transversely of the base, each coil spring being attached at one of its ends to an inturned extension 43 through an aperture therein, and the other free end of each said coil springs is attached to a hook-like member 49, preferably struck rearwardly from the front of the frame I0. The tension of these coil springs is normally to urge the plates I8 and I9 upwardly.

As shown in Figs. '7 and 8, and particularly in Fig. l0 in enlarged form, the frame ear 4I extends at an inward angle not more than a few degrees away from a right angle in relation to the axis of the shaft 39. An angle of less than 2 degrees, preferably approximately 1.5 to 1.7 degrees, away from a right angle is quite satisfactory. By virtue of this construction, it will be seen that when the right film holding assembly is moved downwardly to effect a cutting and splicing of the film, said film assembly is urged very slightly to the left and thereby definitely insures severing of the film ends. In various types of prior art constructions, the resistance offered by the film tends to move the right film holding assembly towards the right with the result that the film frequently is not cut but is only bent. In my construction, bending of the film cannot occur and cutting of the film ends is rendered easy and certain.

At the front of the splicer, a latch means is provided for holding down firmly the hinged plates after a cutting and splicing operation has been carried out and during the time necessary for the cement to dry. The latch means, best shown in Figs. 3 and 5, comprises a vertical portion 5I, a horizontal portion 5,2, latching tabs 53, and a finger piece 54. Said latch means is spring-mounted and is attached to the front of the frame member i0 by means of a bolt 56 which extends through an aperture 51 in the latch means and an alined aperture in said frame'member I6. A coil spring 58 normally under compression encircles the bolt 56 and is held between a nut 59, threaded onto the end of the bolt, and the frame member IIJ. The horizontal .portion 52 extends through a slot 6I in the front of the frame member II). It will be seen, therefore, that the latching tabs 53 hold the hinged plates down firmly, as previously indicated; and when, after the cement has set, it is desired to open the plates I8 and I9, depressing the finger piece 54 will move the latching tabs 53 out of contact with the plates I8 and I9 and the springs 46 and 41 will cause the plates I 8 and I9 to spring upwardly.

The manner of use of the splicer of my present invention is believed clear and no further description is deemed necessary.

Whilev the invention has been described in def tail, no unnecessary limitations should be read thereinto, the scope of said invention being set out in the appended claims.

What ,Iiclaim .as new anddesire to protect Yby LettersPatentof the United States is:

.1. ,In-a-fllm splicer Whichincludes apair ofiilm holding assemblies .each of which Vincludes a base plate-.anda clamping plate, a-iilm scraping supporti member, and a nlm scraper vmounted for longitudinal .movement -along said. support member, said scraper also being adapted for movement in v'its longitudinal plane about an .axis-transverse to-saidplane. l

2. In a film splicer which includes apair offlm holding assemblies `each of which :includes a base plate and 1a .'clampingplatea nlm .scraping support member, `,said support member including `a slot arranged transversely of the film when .the latter is held in gposition'for splicing, and a -lilm scraper mounted vfreely withinsaid .slot for longitudinal movement in its longitudinal Aplane therein, gsaid scraper also being adapted, `for :movement about -an axis transverse to said plane.

Ina i'llm splicer-which includesiapair oflm holding assemblies-eachv of which includes a-base plate .and aclamping plate, anlm scraping support member Axedly mounted von .one of said clamping plates, land a yhlm lscraper mounted for longitudinal movement on said support member, saidsoraper alsobengadapted for movement in its ilongitudinal lplanexalooutanaxis transverse to said-plane. f Y Y 4. ".Inafilmshlicerwhich includesga-pair `of `lm holding assemblies :each of Whichincludes a base plate and'agclamping plate, almscrapingfsupport member xedly mounted .on one of said clampingrelates,saidssupportmemberincluding a slot arranged transversely ofthe lm whenthe latter is held in .position for splicing, and a nlm scraper mounted freely Within said slot for longitudinal movement therein.

V5. In a film splicer which includes a pair yof nlm holding assemblies each of which includes a base plate and a olampingplate, a nlm scraping support member xedly mounted on Aone of said clamping plates, said support member including aslot arrangeditransversely .of the nlm When the latter is heldin position forsplicing, and a film scrapermounted freely .Within .said slot for longitudinal movementthereimsaidscraper alsobeing adapted for .movement in Aits Ilongitudinal ,plane about an axis transverse to said plane.

6. In a lm splicer Which includes a pair of nlm holding assemblies each of which includes a base plate and a clamping plate, a lm scraping support member, and a nlm scraper mounted for longitudinal movement along said support member and also being adapted for movement in its longitudinal plane about an axis transverse to said plane, said film scraper having a scraping surface which is slightly curved longitudinally thereof.

7. In a film splicer which includes a pair of nlm holding assemblies each of which includes a base lplate anda clamping lplate, a film scraping support member fixedly mounted on one of said clamping plates, said support member including a slot arranged transversely of the film when the latter is held in posi-tion for splicing, and a lm scraper mounted freely within said slot for longitudinal movement therein and also being adapted for movement in its longitudinal plane about an axis transverse to said plane, said film scraper having oppositely disposed scraping surfaces each. of Which is of a different degree of abrading character and each Iof which is slightly curved longitudinally thereof. l

8. In a l-m splicer which includes a pair of nlm holding .assemblies each of which includes a base plate and a .clamping piataafllm scraping support member zxedly mounted. onone of said clamping plates. .said support member including aslot arranged transversely of the nlm when-the latter .is ,-held in position for splicing, and a filmf aslot arranged .transve.i'sely o f the jlm when-the latter is .held Yinposition for splicing, and a nlm scraper mounted lfreely Within said slot for longitudinal movement thereinand also being ,adapted for movement .in its longitudinal plane `about an axis transverse to .said plano, said -fllm scraper havingoppositely*disposdncraping sur-faces.

l0. .Ina ilm splicer which includes .means for holding hlm in position for splicing. a ,iii-miserabing support member, and .a nlm .scraper :mounted for :longitudinal f movement along said support member. Said scraper .also being adapted for mcyement in 41longitudinal plane :aboutan axis transverse togsaid plelne, y

11. In a nlm splicer Which-,includes means for holding nimm position -for splioingnarnlm-sorapingsupportgmembersandalmscraloer mounted for longitudinal -.movementalong said support member, said scraper also :being ladapted for movement Yin its longitudinal planeabout .an .axis transverse .to :said plana-.said .scraper having at least :onescrapingsuriaoe mhichis. slightly-.curved long-itudnallythereof. Y

12. Ina *,lm splicer which .includes a .pair of hlm holding assemblies -each `of which includes a1base-plate and aclamping plate, a ifllm scraping support .member :xedly .mounted .on one .of said .clamping plates, .said support member .including aslotarranged `transversely of the vfilm when .the latter is .held 'iin Aposition' for splicing, and :a :film :scraper mounted freely AWithin .said slot :for longitudinal movement therein and :also being Iadapted for `movement in its longitudinal plane about an axis transverse to said plane, said film scraper having oppositely disposed scraping surfaces each of which is slightly curved longitudinally thereof.

13. A scraper unit for use on a nlm splicer, said unit comprising a film scraping support member, and a film scraper mounted freely for longitudinal movement thereon, said scraper also being adapted for movement in' its longitudinal plane about an axis transverse to said plane.

14. A scraper unit for use on a lm splicer, said unit comprising a film scraping support member, and a film scraper mounted freely for longitudinal movement thereon and also being adapted for movement in its longitudinal plane about an axis transverse to said plane, said film scraper having at least onescraping surface which is slightly curved longitudinally thereof.

15. A scraper unit for use on a i'llm splicer, said unit comprising a film scraping support member, said support member including a longitudinal slot, and a lm scraper mounted freely within said slot for longitudinal movement therein, said scraper also being adapted for movement in its longitudinal plane about an axis transverse to said plane.

16. A scraper unit for use on a nlm splicery said unit comprising a film scraping support member, saidV support member includinga longitudinal slot, and a lm scraper mounted freely within said slot for longitudinal movement there in and also being adapted for movement in its longitudinal plane'about an axis transverse to said plane, said lm scraper having at least one scraping surface which is slightly curved longitudinally thereof.

17. In that typeof film splicer which includes a frame, a pair of lm holding assemblies each of which includes a base plate and a clamping plate, one of said base plates and both of said clamping plates being hinged along their rear portions on a longitudinally extending shaft, a pair of spaced ears integrallyA attached to said frame, pairsof spaced ears extending from each of said clamping plates and also from said hinged base plate, all of said clamping plate and hinged base plate ears being bent at essentiallyT a right angle in relation to said plates and all of said ears having alined apertures through which said shaft passes, each outer earof said clamping plates ears being disposed inwardly of but in abutting relation to its respective frame ear, the improvement wherein the frame ear adjacent said assembly of the hinged base and hinged clamping plate extending at an inward angle not more than a few degrees away from a right angle in relation to the axis of said shaft.

118. A lm splicer in accordance with claim 17, wherein the inward angle is approximately 1.5 to 1.7 degrees awayv from a right angle in relation to the axis of the shaft.

19. In that type of nlm splicer which includes a frame, a left and right nlm holding assemblies, the left'lm holding assembly includingr a fixed base plate and a hinged clamping plate. the right film holding assembly including a hinged base plate and a hinged clamping plate, the hinged plates being hinged along theirrear portions on a longitudinally extending shaft, left and right spaced ears integrally attached to said frame, pairs of spaced ears extending from each of said clamping plates and also from said hinged base plate, all of said clamping plate and hinged base plate ears being bent at essentially a right angle in relation to said platesand all of saidears haying alined apertures through which said shaft passes, each outer ear of said clamping plates ears being disposed inwardly of but in abutting relation to its respective frame ear, the improvement wherein the right frame ear extends downwardly from said frame and at an inward angle less than 2 degrees away from a right angle in relation to the axis of said shaft.

20. In that type of film splicer which includes a frame, left and right film holding assemblies, the left film holding assembly including a xed base plate and a hinged clamping plate, the right iilm holding assembly including a hinged base plate and a hinged clamping plate, the hinged plates being hinged along their rear portions on a longitudinally extending shaft,'left and right spaced ears integrally attached to said frame, pairs of spaced ears downwardly extending from each of said clamping plates and also from said hinged base plate, all of said clamping plate and hinged base plate ears being bent at essentially a right angle'in relation to said plates and all of said ears having alined apertures through which said shaft passes, each outer ear of said clamping plates ears being disposed inwardly of but in operatively abutting relation to its respective frame ear, the inner ears of said clamping plates being in juxtaposition to each other, the ears of said hinged base plate being disposed between the ears of one of said clamping plates and in juxtaposition thereto respectively, the improvement wherein the frame ear extends from said frame and at an inward angle not more than 2 degrees away from a right angle in relation to the axis of said shaft.

BERNARD ABOLTIN.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,088,478 Stow Feb. 24, 1914 1,466,076 Van Pelt Aug. 28, 1923 2,385,353 Frankel Sept. 25, 1945 2,457,995 Frankel Jan. 4, 1949 2,495,957 Corsaw Jan. 31, 1950 

10. IN A FILM SPLICER WHICH INCLUDES MEANS FOR HOLDING FILM IN POSITION FOR SPLICING, A FILM SCARPING SUPPORT MEMBER, AND A FILM SCRAPER MOUNTED FOR LONGITUDINAL MOVEMENT ALONG SAID SUPPORT MEMBER, SAID SCRAPER ALSO BEING ADAPTED FOR MOVEMENT IN ITS LONGITUDINAL PLANE ABOUT AN AXIS TRANSVERSE TO SAID PLANE. 